On Fri, Jun 20, 2014 at 11:37:07PM -0500, Edgar Pettijohn wrote:
> On 06/20/2014 11:20 PM, Edgar Pettijohn wrote:
> > On 06/20/2014 10:58 PM, Mike Bregg wrote:
> >> On 2014-06-20 21:14, Edgar Pettijohn wrote:
> >>> On 06/20/2014 10:05 PM, Mike Bregg wrote:
> >>>> On 2014-06-20 20:48, Edgar Pettijohn wrote:
> >>>>> I'm trying to setup dovecot with opensmtpd and I'm getting the
> >>>>> following
> >>>>> errors for dovecot.
> >>>>>
> >>>>> Jun 20 21:41:04 auth-worker(10932): Fatal:
> >>>>> pool_system_realloc(268435456): Out of memory
> >>>>> Jun 20 21:41:04 auth-worker(10932): Fatal: master:
> >>>>> service(auth-worker):
> >>>>> child 10932 returned error 83 (Out of memory (service auth-worker {
> >>>>> vsz_limit=256 MB }, you may need to increase it) - set CORE_OUTOFMEM=1
> >>>>> environment to get core dump)
> >>>>> Jun 20 21:41:04 auth: Error: auth worker: Aborted request: Worker
> >>>>> process died unexpectedly
> >>>>> Jun 20 21:41:10 auth-worker(12071): Fatal:
> >>>>> pool_system_realloc(268435456): Out of memory
> >>>>> Jun 20 21:41:10 auth: Error: auth worker: Aborted request: Worker
> >>>>> process died unexpectedly
> >>>>> Jun 20 21:41:10 auth-worker(12071): Fatal: master:
> >>>>> service(auth-worker):
> >>>>> child 12071 returned error 83 (Out of memory (service auth-worker {
> >>>>> vsz_limit=256 MB }, you may need to increase it) - set CORE_OUTOFMEM=1
> >>>>> environment to get core dump)
> >>>> You could try increasing vsz_limit to something like 512 MB. Do you
> >>> have mailboxes with a large quantity of emails (as in thousands) that
> >>> 256 MB isn't enough?
> >>>> Mike
> >>>>
> >>> I felt like that was a clue, but have no idea how to set vsz_limit,
> >>> however there is no mail on the system. I got those errors just testing
> >>> imap login from mutt.
> >> Have a look through the config files in /etc/dovecot/conf.d
> >>
> >> Mike
> >>
> > Yeah I found it hiding out in 10-master.conf upped it to 512MB as
> > suggested with no luck. Then just for fun I upped it to 5000M and still
> > no luck.
> >
> > Edgar
> >
> I just noticed in the log even after raising vsz_limit the error remains
> the same claiming vsz_limit=256MB
This is a know bug. If an unknown user tries to log in, the login code
goes into a loop expanding a buffer until it runs out of mem. The
cause of the bug is also known, but nobody (including myself) came up
with a diff yet.
The login process gets rsstarted, so there is no immediate functional
problem, apart from the log being filled.
-Otto
